If we wear a seat belt that is in poor condition, what should we do?

If we wear a seat belt that is in poor condition, what should we do?
A)Nothing.
B)Repair it immediately, we cannot drive in this situation.Correct
The seat belt must always be in perfect condition, both the strap and its anchor points, and arranged so that it fits snugly against our body. Otherwise, its function could be practically null.